Sensors were attached to the kids’ wrists to note their movements in bed for around five evenings. Those who took the omega-3 DHA supplements ended up having 58 minutes more sleep and waking up seven times less throughout the night, than those who took a placebo.
“Various substances made within the body from omega-3 and omega-6 fatty acids have long been known to play key roles in the regulation of sleep,” said Paul Montgomery, lead author of the study. “For example, lower ratios of DHA have been linked with lower levels of melatonin, and that would fit with our findings that sleep problems in children with lower levels of DHA in their blood.”
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Given the small number of child participants, the researchers admitted a need for further research.